Fastest free TRON RPC, live no-key JSON-RPC endpoint latency

TronGrid leads rpc latency at 11 ms (p50, 24h) on Fastest free TRON RPC, live no-key JSON-RPC endpoint latency. HTTP round-trip latency for `eth_getBlockByNumber("latest", false)` against every free, no-key public TRON JSON-RPC-compatible endpoint, audited every 60 seconds from 3 regions.